18902872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5407}}^1$

素因数の和:5455

約数の個数: 32

約数和(自身を含む): 38937600

約数和(自身を除く): 20034728

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 437, 874, 1748, 3496, 5407, 10814, 21628, 43256, 102733, 124361, 205466, 248722, 410932, 497444, 821864, 994888, 2362859, 4725718, 9451436, 18902872]

約数ペア:

[(1, 18902872), (2, 9451436), (4, 4725718), (8, 2362859), (19, 994888), (23, 821864), (38, 497444), (46, 410932), (76, 248722), (92, 205466), (152, 124361), (184, 102733), (437, 43256), (874, 21628), (1748, 10814), (3496, 5407)]